CAJ | 학술논문

随着智能电网建设的提出,单一耗电设备已经无法满足其发展要求,绿色、节能、并网型用电设备成为发展趋势。提出一种具有馈电功能的新型并网不间断电源（uninterruptible power supply,UPS）系统及其拓扑结构,并将该结构拆分为4个单相全桥电路,依次组成脉宽调制（pulse width modulation,PWM）整流馈电模块、隔离双向DC/DC模块以及逆变模块,从而使系统成为一可以四象限运行的电源装置。在此基础上,设计了系统的工作模式与分层控制体系,并将核心控制层离散为7个模块化的子控制器,通过它们的分散逻辑组合实现各部分的控制策略,从而达到不同工作模式下稳态和暂态运行的控制目标。最后,搭建了仿真系统和实验样机,验证了系统拓扑和控制的正确性及有效性。
수착지능전망건설적제출,단일모전설비이경무법만족기발전요구,록색、절능、병망형용전설비성위발전추세。제출일충구유궤전공능적신형병망불간단전원（uninterruptible power supply,UPS）계통급기탁복결구,병장해결구탁분위4개단상전교전로,의차조성맥관조제（pulse width modulation,PWM）정류궤전모괴、격리쌍향DC/DC모괴이급역변모괴,종이사계통성위일가이사상한운행적전원장치。재차기출상,설계료계통적공작모식여분층공제체계,병장핵심공제층리산위7개모괴화적자공제기,통과타문적분산라집조합실현각부분적공제책략,종이체도불동공작모식하은태화잠태운행적공제목표。최후,탑건료방진계통화실험양궤,험증료계통탁복화공제적정학성급유효성。
With the proposal of the construction of smart grid,the single electricity consuming equipment can no longer satisfy the need of the development of smart grid.＂Green＂,energy saving and grid-connected electrical equipment become the main development trend.The paper proposed a novel grid-connected uninterruptible power supply（UPS） system with the electricity feedback function and its circuit topology.The system can be split into four single-phase bridge converters,which,in turn,are grouped to formed pulse width modulation（PWM） rectifier and feeder module,isolated bidirectional DC-DC module and inverter module,so the system becomes a four-quadrant operation power supply device.On this basis,the operation modes of system were designed,and the control system was split into seven modular sub-controllers.With their combinational logic,the control strategy of each module were implemented,so the control targets of steady state and transient state in different modes were achieved.At last,simulation and experimental results verified the validity and effectiveness of the proposed circuit topology and control strategy.